Janhaugite Mineral Data + 
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- 56.2.4.1 Baghdadite Ca3(Zr,Ti)Si2O9 P 21/a 2/m
- 56.2.4.2 Burpalite Na2CaZrSi2O7F2 P 21/a 2/m
- 56.2.4.3 Cuspidine Ca4Si2O7(F,OH)2 P 21/c 2/m
- 56.2.4.4 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 21/a 2/m
- 56.2.4.5 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 21/m 2/m
- 56.2.4.6 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m
- 56.2.4.7 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1
- 56.2.4.8 Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8F P1 1
- 56.2.4.9 Hainite Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8 P1 1
- 56.2.4.10 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 21/n 2/m
- 56.2.4.11 Jennite Ca9Si6O18(OH)6·8H2O P1 1
- 56.2.4.12 Komarovite (Ca,Mn)2(Nb,Ti)2Si2O7(O,F)2·3.5(H2O) Unk Ortho
- 56.2.4.13 Na-komarovite? Na6CaNb6[Si4O12F2·4(H2O) C mmm 2/m 2/m 2/m
- 56.2.4.14 Suolunite Ca2Si2O5(OH)2·(H2O) F dd2 mm2
- 56.2.4.15 Mongolite Ca4Nb6Si5O24(OH)10·5(H2O) Unk Tetra
- 56.2.4.16 Kristiansenite! Ca2ScSn(Si2O7)(Si2O6OH) C1 1
- 56.2.4.17 Kochite! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 P1 1
- VIII/C.11-05 Cuspidine Ca4Si2O7(F,OH)2 P 21/c 2/m
- VIII/C.11-10 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 21/m 2/m
- VIII/C.11-12 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 21/n 2/m
- VIII/C.11-15 Normandite! NaCa(Mn,Fe)(Ti,Nb,Zr)Si2O7(O,F)2 P 21/a 2/m
- VIII/C.11-20 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 21/a 2/m
- VIII/C.11-25 Burpalite Na2CaZrSi2O7F2 P 21/a 2/m
- VIII/C.11-30 Baghdadite Ca3(Zr,Ti)Si2O9 P 21/a 2/m
- VIII/C.11-40 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m
- VIII/C.11-50 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1
General Janhaugite Information |
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 Chemical Formula: |
(Na,Ca)3(Mn++,Fe++)3(Ti++++,Zr,Nb)2Si4O15(OH,F,O)3 | ||
| Composition: |
Molecular Weight = 773.35 gm | ||
| Sodium 8.32 % Na 11.22 % Na2O | |||
| Calcium 1.04 % Ca 1.45 % CaO | |||
| Zirconium 4.72 % Zr 6.37 % ZrO2 | |||
| Titanium 9.29 % Ti 15.49 % TiO2 | |||
| Manganese 17.05 % Mn 22.01 % MnO | |||
| Niobium 3.60 % Nb 5.16 % Nb2O5 | |||
| Iron 4.33 % Fe 5.57 % FeO | |||
| Silicon 13.80 % Si 29.52 % SiO2 | |||
| Hydrogen 0.18 % H 1.63 % H2O | |||
| Oxygen 34.96 % O | |||
| Fluorine 2.70 % F 2.70 % F | |||
| - % F -1.14 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Na2.8Ca0.2Mn2+2.4Fe2+0.6Ti1.5Zr0.4Nb0.3Si3.8O15(OH)1.4F1.1O0.5 | ||
| Environment: |
In groundmass and miarolitic cavities in sodium-rich granite. | ||
| IMA Status: |
Approved IMA 1983 | ||
| Locality: |
From Gjerdingen, 30 km north of Olso, Norway. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Jan Haug, and amateur mineralogist who first observed the mineral. | ||
| Synonym: |
ICSD 30900 | ||
| PDF 35-641 | |||
Janhaugite Image | |||
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Images:
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Images:
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Janhaugite Crystallography |
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| Axial Ratios: |
a:b:c =1.09:1:1.4234 | ||
| Cell Dimensions: |
a = 10.668, b = 9.787, c = 13.931, Z = 4; beta = 107.82° V = 1,384.72 Den(Calc)= 3.71 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.839(1), 2.782(0.9), 2.833(0.9), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Janhaugite |
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| Cleavage: |
[010] Distinct | ||
| Color: |
Reddish brown. | ||
| Density: |
3.6 | ||
| Diaphaniety: |
Semitransparent | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes | ||
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | ||
| Habit: |
Striated - Parallel lines on crystal surface or cleavage face. | ||
| Hardness: |
5 - Apatite | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
light brown | ||
Optical Properties of Janhaugite |
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| Gladstone-Dale: |
CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.039 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2253,KPDmeas= 0.2322,KC= 0.2346 |
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| Optical Data: |
Biaxial (+), a=1.77, b=1.828, g=1.91, bire=0.1400, 2V(Calc)=84, 2V(Meas)=80. | ||
| Pleochroism (x): |
colorless. | ||
| Pleochroism (y): |
beige. | ||
| Pleochroism (z): |
beige. | ||
Calculated Properties of Janhaugite |
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| Electron Density: |
relectron=3.46 gm/cc |
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| Fermion Index |
Fermion Index = 0.02484 Boson Index = 0.97516 |
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| Photoelectric: |
PEJanhaugite = 19.67 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Janhaugite is Not Radioactive |
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Janhaugite Classification |
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| Dana Class: |
56.2.4.10 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O | ||
| (56.2)with cations in [4] and/or >[4] coordination | |||
| (56.2.4)Cuspidine - Wohlerite group | |||
| Strunz Class: |
VIII/C.11-12 VIII - Silicates | ||
| VIII/C - Sorosilicates with [Si2O7]6-, with anions unfamiliar to tetraheders [O,OH,F] | |||
| VIII/C.11 - Wöhlerite - Lavenite series | |||
Other Janhaugite Information |
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| References: |
NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2) | ||
| See Also: |
Links to other databases for Janhaugite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Janhaugite using: Visit our Advertisers for Janhaugite : Translate Janhaugite Mineral Data : Ask about Janhaugite here : Print or Cut-and-Paste your Janhaugite Specimen Label here :
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